Tank-siphon.



A.J.A SHFORD.

TANK SIPHON.

APPLIOA'IION I'ILBD AUG. 6, 1910.

Patented J an. 2, 1912.

'NITED STATES FAT TANK-SIPHON.

Specfication of Letters atent.

Patented Jan. 2, 1912.

Application filed. August 6, 1910. Serial No. 575,966.

To all 'whom tt may concem:

Be it known that I, ALFRED J. AsHFoRD, citizen of the United States,residing at Kinst-on', in the county of Lenoir and State of NorthCarolina, have invented certain new and useful Improvements in Tank-Siphons, of which the following is a specification.

My invention relates to an improvement in tank siphons.

The object is to provide means for forcing the water in a stand pipeinto the flush pipe for causing the water in the tank to be sucked ordrawn into the fiush pipe, thereby producing a siphonic action.

The invention consists of certain novel features of Construction andcombination of parts which will be hereinafter described and pointed outin the claim.

In the accompanying drawing z-Figure 1 is a vertical sectional viewthrough the tank showing my inventon. Fig. 2 is a sectonal view showinga modified arrangement of connecting the fiush pipe with the tank.

A represents the flush tank and l is the flush pipe which extends abovethe water line and then is bent downwardly so that the end of the pipeis near the bottom of the tank, the end of the pipe being flared as at2. The vertical stand pipe 3 is mounted in the tank and the lower end ofthe stand pipe is adj acent to the end of the fiush pipe 1. A plunger 4is mounted in the stand pipe 3 and is adapted to be moved therein 'orforcing the water, which will rise in the pipe as the tank is filled,into the flared end of the flush pipe 1. The forcing of the water fromthe stand pipe into the flush pipe will cause the water in the tank tobe drawn into the fiush pipe 1 and the pres sure of the water injectedinto the fiush pipe from the stand pipe will be sufiicient to carry thewater over the bend in the fiush pipe and down the main portion of thefiush pipe. The forcing of the water from the stand pipe into the fiushpipe will draw the 'water from the tank into the fiush pipe whereby asiphonic action is produced for drawing the water from the tank. A lever5 is connected to the plunger 4 and is provided with a weight 6 fordrawing the plunger upward in the pipe 3, after each operation. Thelever 5 is provided with an elongated slct 7. A bell crank lever 8 ispivotally connected to the tank A and one end of the bell crank has aloose connection with the lever 5 by pin 9 which is received in theelongated slot 7 the other terminal of the bell crank 8 is connected tothe push rod 10 by means of a link ll.

Assuming that the tank is full with water and that it is desired toproduce the fiushng action the push rod 10 is forced inward causing thebell crank to be operated; 'as the terminal of the bell crank which isconnected to lever 5 is moving downward it will engage an abutment orprojection 12 causing the lever to move and force the plunger 4 downwardinto the stand pipe 8 thereby causing the water in the stand pipe to bedischarged into the fiush pipe 1. The water from the stand pipedischarging into the flush pipe will produce a suction causing the waterin the tank to be drawn into the flush pipe thereby causing the tank tobe emptied. l/Vhen the tank is filled by any suitable means (not shown)water will enter the stand pipe 3 so that the plunger in the stand pipewhen operated will act upon the water and force it into the flush pipe.After the operation of the plunger in discharging the water from thestand pipe the push rod 10 is drawn outward so that the bell crank 8will be in position for the next operation. The weight 6 on the lever 5will cause the lever to be moved on the pin 9 after each operation forraising the plunger 4 in the stand pipe 3.

In the modified form shown in Fg. 2 I have shown the flush pipeextending over the top of the tank instead of extending through thebottom of the tank as in Fig. 1. It will therefore be seen that by thisarrangement there is practically no possibility of the tank leaking fromformation of joints in connecting the fiush pipe with the tank.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is z The combination with the stem of aplunger, of a slotted lever provided with an abutment or projection,means connected With said lever for normally raisng the In testmonyWhereof I aflix my signature phnger, a bell-crank level* having slidngin the presence of tWo witnesses.

connection With the first-nentoned level' through the medium of itsslot, and means ALFRED J OHNSON ASHFORD. for rocking the beH-cmnk leverWhereby it is eaused to engag'e the projecton on the VVtnesses: i

other level' to cause the plunger to move in W. B. HANEY,

the opposte direction. T. `W. HEATH.

copies of this patent may be obtained for five cents each, by addressingthe Commissionr of Patents, Washington, D. G."

